From patchwork Sun Feb 16 15:19:36 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Masahiro Yamada X-Patchwork-Id: 11384455 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id BC85E139A for ; Sun, 16 Feb 2020 15:20:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9772020729 for ; Sun, 16 Feb 2020 15:20:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581866415; bh=exgHgyopno5dsg4ksAGCVM0yezXU6THnnU4VzAJiuz8=; h=From:To:Cc:Subject:Date:List-ID:From; b=1c32kkFHXlcR97YM/yvr+4d1gwgFYQGX2HIQAIo2gvdkS/c1KhWOeSZ+zJ7dSGPG7 zDKNxXLAKwVS/Eb8kA+pYY/te5IuACxcHoJBelvCjgVwCAgrFDS1Wn0jM/mh0arEYq LeBckQ4pbJ4uR/VXRiz/9NQbklTlsLMheEZY3Uks= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728220AbgBPPUP (ORCPT ); Sun, 16 Feb 2020 10:20:15 -0500 Received: from conuserg-10.nifty.com ([210.131.2.77]:30575 "EHLO conuserg-10.nifty.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726171AbgBPPUO (ORCPT ); Sun, 16 Feb 2020 10:20:14 -0500 Received: from grover.flets-west.jp (softbank126093102113.bbtec.net [126.93.102.113]) (authenticated) by conuserg-10.nifty.com with ESMTP id 01GFJfJi012792; Mon, 17 Feb 2020 00:19:42 +0900 DKIM-Filter: OpenDKIM Filter v2.10.3 conuserg-10.nifty.com 01GFJfJi012792 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nifty.com; s=dec2015msa; t=1581866382; bh=KnP9tgxSHUQAMQklRwAiuVTY8xsRWN3iDCIditBPlOM=; h=From:To:Cc:Subject:Date:From; b=VSSaRQQnCyhooGy+l+0rFBVdYPtZmpJIVhDfCGS8K+CPuBE4zPviJ2iJplC/K1/nj TEEQ7Tu0LcnQq3gb7E6rtGDLHWtHlpEluwsChPynxuK8fInLqnapNX3ZQf/l77rpZb RmPzicA/+bOqAKDycAMj8v5E1YW97Qkmlrv0xi7cipMklS7k7441kgjtV4VBf3CUn1 Bcy8Os4cJwoRDr3Fo4mQTrJyYqhYsZjAaNWHk06tXIfNpdLXLZ4fn1pDaE7tYTta+a 1WQLpzpajkmYdho4B2AXUNlSRRLqqeRngfLWkNe41kHtCpTT3Lt1RYGSY3qYamvsL4 /XH3UhazFSn0A== X-Nifty-SrcIP: [126.93.102.113] From: Masahiro Yamada To: linux-kbuild@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Masahiro Yamada , Michal Marek , clang-built-linux@googlegroups.com Subject: [PATCH] kbuild: remove cc-option switch from -Wframe-larger-than= Date: Mon, 17 Feb 2020 00:19:36 +0900 Message-Id: <20200216151936.23778-1-masahiroy@kernel.org> X-Mailer: git-send-email 2.17.1 Sender: linux-kbuild-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kbuild@vger.kernel.org This CONFIG option was added by commit 35bb5b1e0e84 ("Add option to enable -Wframe-larger-than= on gcc 4.4"). At that time, the cc-option check was needed. According to Documentation/process/changes.rst, the current minimal supported version of GCC is 4.6, so you can assume GCC supports it. Clang supports it as well. Remove the cc-option switch and redundant comments. Signed-off-by: Masahiro Yamada Reviewed-by: Nathan Chancellor Reviewed-by: Nick Desaulniers --- Makefile | 2 +- lib/Kconfig.debug | 3 +-- 2 files changed, 2 insertions(+), 3 deletions(-) diff --git a/Makefile b/Makefile index 84b71845c43f..8f15926b83bb 100644 --- a/Makefile +++ b/Makefile @@ -728,7 +728,7 @@ KBUILD_CFLAGS += $(call cc-option,-fno-reorder-blocks,) \ endif ifneq ($(CONFIG_FRAME_WARN),0) -KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN}) +KBUILD_CFLAGS += -Wframe-larger-than=$(CONFIG_FRAME_WARN) endif stackp-flags-$(CONFIG_CC_HAS_STACKPROTECTOR_NONE) := -fno-stack-protector diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 69def4a9df00..fb6b93ffdf77 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -266,7 +266,7 @@ config ENABLE_MUST_CHECK attribute warn_unused_result" messages. config FRAME_WARN - int "Warn for stack frames larger than (needs gcc 4.4)" + int "Warn for stack frames larger than" range 0 8192 default 2048 if GCC_PLUGIN_LATENT_ENTROPY default 1280 if (!64BIT && PARISC) @@ -276,7 +276,6 @@ config FRAME_WARN Tell gcc to warn at build time for stack frames larger than this. Setting this too low will cause a lot of warnings. Setting it to 0 disables the warning. - Requires gcc 4.4 config STRIP_ASM_SYMS bool "Strip assembler-generated symbols during link"